Free interior design tools
Browser tools
Pick a tool by task
Every calculator shows its rules and dated sources, so you can check the numbers before you buy or build.
Room sizing & layout
Measure once, then size rugs, floors and layouts to your room.
Rug Size Calculator
Find the right rug size for a living room, bedroom, dining room or hallway, drawn to scale.
Open toolFlooring Calculator
Work out how much flooring to buy for a room, including the waste allowance.
Open toolKitchen Layouts and Work Triangle Checker
Compare the main kitchen layouts and check your work triangle against the guidelines.
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Color & style
Find your style and build a palette that works together.
Interior Design Style Quiz
Answer a few visual questions to find your decorating style and its top matches.
Open tool60-30-10 Color Rule Palette Builder
Build a room palette with the 60-30-10 rule and see how it balances.
Open toolPaint Color Matcher
Pick a color from a photo and find the nearest paint colors to it.
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Cost calculators
Budget a remodel, staging or a designer with dated sources.
Bathroom Remodel Cost Calculator
Estimate a bathroom remodel by size, scope and finish level, with dated sources.
Open toolHome Staging Cost Calculator
Estimate physical and virtual staging costs by home size and rooms staged.
Open toolInterior Designer Cost Calculator
Estimate what an interior designer costs by fee model, rooms and scope.
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Photo tools
Make and share room photos in your browser.
AI Room Designer
See the ideas in your own room
See the change on your own room. Upload a photo and run any of 40+ AI workflows in the paid app, from restyling and decluttering to virtual staging and new floors.